描述：Manual fire alarm trip unit Activated by pressing the centre of the membrane (pressure of 2.5 kg) with clear display of the trip position. Front panel reset without damaging the membrane, includes special key (delivered with product). Space reserved for attaching a marker tag showing how to use. Fitted with O/C contact - 0.1 A - 48 V continuous. Red RAL 3000 trip fitted with a membrane. Class II 标准 EN 54 - 11 打碎玻璃型和锁匙控制型
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